Noun: the process of growing old. You could say that your glamorous grandparents make aging look easy.. Aging (BE) or aging (AE) is the process of getting older. The term primarily refers to humans, many other animals and fungi, while bacteria, perennial plants, and some simple animals, for example, are potentially biologically immortal.
In a broader sense, aging can refer to individual cells within an organism that no longer divide, or to the population of a species. Aging is associated with changes in dynamic, biological, physiological, ecological, psychological, behavioral and social processes. Some age-related changes are benign, such as. B. graying hair. Others result in a decrease in the function of the senses and activities of daily living, as well as increased susceptibility to and frequency of illness, frailty, or disability..
In fact, advancing age is the main risk factor for a number of chronic diseases in humans. At the biological level, aging results from the influence of the accumulation of a variety of molecular and cellular damage over time.. This leads to a gradual decline in physical and mental performance, a growing risk of disease and ultimately death.. These changes are neither linear nor consistent and are only loosely related to a person’s age in years..
The diversity in old age is no coincidence. In addition to biological changes, aging is often associated with other life transitions such as retirement, moving to more suitable housing, and the death of friends and partners.. The following drugs and interventions have been shown to slow or reverse the biological effects of aging in animal models, but none of them have been proven to do so in humans so far. Such a genetic effect is called the antagonistic pleiotropy effect when it refers to a gene (pleiotropia, which means that the gene has a dual function – it allows reproduction at a young age, but costs the organism life expectancy in old age) and is called the one-way soma effect when it focuses on an entire genetic program (the organism that diverts limited resources from conservation to reproduction).
Extension can work with other agencies and groups to offer support groups that deal with grief, widowhood, coping skills, relocation, retirement, etc.. deal. In humans, aging represents the accumulation of changes in a person over time and can include physical, psychological, and social changes. The environments in which people live as children — or even as developing fetuses — combined with their personal characteristics, have long-term effects on their age. In organisms that reproduce by sexual reproduction, daughter cells result from meiosis); therefore, do not age and are potentially immortal under favourable conditions.
There are some procedures for glaucoma, but there is no cure or solution for the damage once it has occurred.. Aging increases the risk of human diseases such as cancer, Alzheimer’s, diabetes, cardiovascular disease, stroke, and many more. Obesity has been suggested to accelerate aging, whereas calorie reduction in non-primate animals slows aging while at the same time. Common conditions in old age include hearing loss, cataracts and refractive errors, back and neck pain and osteoarthritis, chronic obstructive pulmonary disease, diabetes, depression and dementia.
Coli can split into distinguishable daughter cells, opening up the theoretical possibility of age groups among bacteria. Most legal systems set a specific age at which a person may or must engage in certain activities.. These ages include voting age, drinking age, age of consent, age of majority, age of criminal responsibility, marriage age, age of candidacy, and mandatory retirement age. The process of getting older, especially when people reach middle age and beyond, is called aging, and it is also an adjective that describes someone or something that goes through this process.
The aging rate varies significantly between species, and this is due to a large extent genetic.
- Understanding the Dynamics of the Aging Process | National Institute on Aging
- AGING | definition in the Cambridge English Dictionary